[FEATURE] Customizable conversation title format

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Currently, conversation titles are auto-generated based on conversation content with no way to customize the format.

It would be useful to allow users to define a title format/template, either in CLAUDE.md, settings.json, or a dedicated configuration option.

Benefits:

• Better organization when juggling multiple tasks/tickets
• Quick cross-reference between conversations and project management tools
• Consistent naming across team members

Proposed Solution

One or more of these approaches:

1. A conversationTitle instruction in CLAUDE.md or settings — e.g., a natural language instruction like:

conversationTitle: "Start with the Linear/Jira issue key if available, followed by a short description"

1. A template format — e.g.:

conversationTitleFormat: "{issue_key} - {description}"

1. Hook-based — a conversation_start hook that can set/override the title.

Alternative Solutions

_No response_

Priority

Low - Nice to have

Feature Category

CLI commands and flags

Use Case Example

When working on Linear/Jira tickets, I'd like conversation titles to start with the issue key followed by a brief description, e.g.:

• ENG-203 - Rspack migration
• PROJ-45 - Fix login redirect bug

This makes it much easier to find and reference past conversations when they're tied to specific tasks in a project management tool.

Additional Context

_No response_